rattles

hi guys ,another wee problem lol the bike itself runs and starts good but now i can hear this rattling sound seems to be comming from both sides of the crank case .pull in the clutch and it goes away any ideas as to my problem ive not looked close at it yet but i was thinking about the plate...

Hi guys, me 04 factory engine has a chattering like noise coming from it when bike is banked over on cornering, also if the engine labour's a bit , there's a heavy chatter sound, engine oil levels good and there's no loss in power, guessing a feel like it is slack timing chain or worn chain...